Download Briggs & Stratton 28T700 Specifications

//_
[_]
BRIGGS& STRATnDNJ
this
Operator/Owner
Manual. read
Failure
follow Instructions
Before
starting this engine,
and to
understand
in this manuel could result in serious injury or death.
Operator/OwnerManual
Model Series 194700, 195700, 196700, 197700,
28B700, 28D700, 28M700, 28R700, 28T700, 28V700,
283700, 284700, 286700, 288700, 289700
I Model
Type
Code I
Formtur.,_fer.n,_,_.eyourp._._n_Mo_Vry_Codeher..I
I I I I I I I I I I I I II I I I I I I I I
For future reference, write your n_
Date of Purchase here.
In the Interest of Safety ............................
Oil & Fuel Recommendations
......................
Starting & Stopping
Adjustments
Maintenance
...............................
......................................
......................................
Briggs & Stratton Corporation
Milwaukee, Wisconsin 53201
www.briggsandstretton.com
i_[--_
['_
[_
Table of Contents
2
Maintenance Schedule ............................
3
Service, Storage & Specifications ..................
4
Emission System Warranty .......................
5
6
About Engine Warranty ..............
Engine Warranty .................................
© Copyright 1997 by Briggs & Stratton Corporation
.............
8
9
10
11
12
FORM NO, 273681-8/97
PRINTED IN U.S,A.
Maintenance, replacement or repair of the emission control devices and systems may be performed by any nonroad engine repair establishment or individual. However, to obtain no charge repairs under the terms and provisions of the
Briggs & Stratton warranty statement, any service or emission control part repair or replacement must be performed by a
factory authorized dealer.
In the Interest
of Safety
This safety alert symbolindicates that this message
_
You are not ready to operate this engine if you
involves personal safety. Words danger, warning
_
have not read and understood the following
and caution indicate degree of hazard. Death,
safety items. Read this entire owner's manual and
personal injury and/or property damage may occur
the operating instructions of the equipment this
unless instructions are followed carefully,
engine powers.
The Briggs & Stratton engine you bought with your equipment is made of the finest material in a state-of-the-art manufacturing
facility. Please understand that Briggs & Stratton sells engines to original equipment manufacturers. It also sells to others in the
distribution chain who may sell to the ultimate consumer, an equipment manufacturer, another distributor or a dealer. As a result,
Briggs & Stratton does not necessarily know the application on which the engine will be placed. For that reason, you should
carefully read and understand the operating instructions of the equipment on which your engine is placed before you operate it.
You should arso understand that there are equipment applications for which Briggs & Stratton does not approve the use of its
engines. Briggs & Stratton engines are not to be used on vehicles with less than 4 wheels. They include motor bikes, aircraft
products and All Terrain Vehicles. Moreover, Briggs & Stratton does not approve of its engines being used in competitive events.
FOR THAT REASON, BRIGGS & STRATTON ENGINES ARE NOT AUTHORIZED FOR ANY OF THESE APPLICATIONS. Failure to follow this warning could resurt in death, sedous injury (including paralysis) or property damage.
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DO NOT check for spark with spark plug removed. (Use an
approved tester.)
DO NOT crank engine with spark plug removed. (If engine is
flooded, place throttle in FAST and crank until engine starts.)
DO NOT strike flywheel with a hammer or hard object as this
may cause flywheel to shatter in operation. (To remove flywheel,
use Briggs & Stratton approved tools only.)
DO NOT operate engine without a muffler. (Inspect periodically
and replace if worn or leaking. If engine is equipped with muffler deflector, inspect periodically and replace if necessary. Beplacement parts must be same as on original equipment.)
DO NOT operate engine with an accumulation of grass,
leaves or other combustible material in muffler area.
DO NOT use this engine on any forest covered, brush covered, or grass covered unimproved land unless a spark arrester is installed on muffler. The spark arrester must be maintained in working order by the owner and/or operator. In the
State of California the above is required by law (Section 4442
of the California Public Resources Code). Other states may
have similar laws. Federal laws apply on federal lands.
DO NOT touch hot muffler, cylinder, or fins which can cause
burns.
DO NOT start engine with air cleaner or air cleaner cover removed (or cover over carburetor air intake, if Sno/Gard engine).
DO NOT attempt to start engine with cutting blade loose or removed. (Blade must be tight, otherwise a kickback may occur.)
DO NOT run engine in an enclosed area.
(Exhaust gases contain carbon monoxide, an
odorless and deadly poison.)
engine is hot or running. DO NOT refuel indoors or in
DO NOT remove fuel tank cap nor fill fuel tank while
an unventilated area. (Allow engine to cool 2 minutes before refueling.)
DO NOT place hands or feet near moving or rotating parts.
DO NOT store, spill, or use gasoline near an open flame, nor
near an appliance like a stove, furnace, or water heater that
uses a pilot light or can create a spark.
DO NOT refuel indoors or in an unventilated area.
DO NOT operate or tip engine/equipment at such a severe
angle that causes gasoline spillage.
DO NOT operate engine if gasoline is spilled or when smell of
gasoline is present or other explosive conditions exist. (Move
equipment away from spill and avoid any ignition until gasoline
has evaporated.)
DO NOT transport engine with fuel in tank or fuel shut-off
valve open.
DO NOT choke carburetor to stop engine, especially in an enclosed vehicle. (Whenever possible, gradually reduce engine
speed before stopping.)
DO NOT tamper with govemor spdngs, links or other parts to
increase engine speed. (Run engine at speed set for equipment
manufacturer.)
V' PULL starter cord _
until resistance is felt. Then pull
cord rapidly to avoid kickback and prevent hand or arm injury.
V' PREVENT ACCIDENTAL STARTING by removing spark
plug wire from spark plug when servicing engine or equipment. Disconnect negative wire from battery terminal if
equipped with electric starting system.
V' REMOVE blower housing periodically and clean engine.
Keep cylinder fins and governor parts free of dirt, grass
and other debris which can affect engine speed.
USE fresh gasoline. Stale fuel can gum carburetor and
cause leakage.
i/ CHECK fuel lines and fittin_ls frequently for cracks or
International
I
Symbols
_
A
JKr-T-'_J Safety Alert- Read
leaks. Replace if necessary.
Use only Genuine Briggs & Stratton Parts or their
equivalent. The use of replacement parts which are
not of equivalent quality may damage the engine.
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects, or other reproductive
harm.
I-I1-11-11-11-11-11_
On Off
(_ Stop
Owner'sManual
"1_
Fuel
Shutoff
_
Fuel
I'_1
Choke
In the USA and Canada, a 24 hour hot line, 1-800-233-3723, has a menu of pre-recorded messages offering you engine maintenance information.
2
Oil & Fuel Recommendations
Oil
Fuel
This engine is shipped from Briggs & Stratton without oil.
Before startino enoine, check oil level as shown below.
Use clean, fresh, regular unleaded gasoline with a minimum
of 77 octane. Do not mix oil with gasoline Fresh fuel prevents
gum from forming in fuel system or on essential carburetor
parts. Purchase fuel in quantity that can be used within 30
days. In countries other than the U.S.A., leaded gasoline may
be used ifcommercially available and unleaded is unavailable.
Change and add oil according to chart below. Do not over-fill.
Use a high quality detergent oil classified "For Service SF,
SG, SH," such as Briggs & Stratton "warranty certified" SAE
30 oil, Part No. 100005. Use no special additives with recommended oils. Do not mix oil with gasoline.
r Grades
We recommend the use of Briggs & Stratton Gasoline Additive.
(See your Authorized Briggs & Stratton Service Dealer for
Part No. 5041 or the single-use pouch.) See storage instructions, on page 9.
Note: Some fuels, called oxygenated or reformulated
gasolines, are gasolines blended with alcohots or ethers.
Excessive amounts of these blends can damage the fuel
system or cause performance problems. Do not use gasoline
which contains Methanol. If any undesirable operating
symptoms occur, use gasoline with a lower percentage of
alcohol or ether.
Do not over-fill fuel tank.
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STARTINGTEMPERATURE
RANGEANTICIPATEDBEFORENEXTOILCHANGE
Air cooled engines run hotter than automotive engines. The use of
multi-viscosity oil such as (10W-30, etc.) in ambient temperatures
above 40 ° F (4 ° C) will result in higher than normal oil consumption.
If multi-viscosity oll is used, check the oil level more frequently to
prevent any possible engine damage due to lack of lubrication.
** Use of SAE 30 oil below 40 ° F (4 ° C) will result in hard starting
and possible engine damage due to inadequate lubrication.
Allow space for fuel expansion.
Check oil level before starting engine.
Add oil as shown below.
Oil capacity
(36 ounces
Oil capacity
(48 ounces
of Model Series 190000 is about 1-1/8 quarts
or 1.1 liters).
of Model Series 280000 is about 1-1/2 quarts
or 1.4 liters).
After filling with or changing oil, start and run engine at idle for
30 seconds. Shut engine off. Wait 30 seconds and check oil
level. Add oil, if required, to bdng level to Full mark on dipstick.
1.
2. Oil drain plug
3. Fuel fill
4. Fuel tank
5o Oil fill/Dipstick
6. Finger guard
7. Rope handle
8. Air cleaner
9. E__q_
Model
XXXXXX
Type
Code
XXXX XX
XXXXXXXX
10. Muffler
11. Spark plug wire
Place engine level.
Remove dipstick.
Clean around oil fill.Wipe with clean cloth.
"nghton dipstick.
Remove & check.
12.
13.
14.
15.
16.
Fillto FULL mark If oil is required, add Tighten dipstick beon dipstick, slowly. Recheck level, fore starting engine.
Rotating screen
Blower housing
Fuel filter
Carburetor
Crankshaft
In the USA arid Canada, a 24 hour hot line, 1-800233-3723, has a menu of pre-recorded messages oflenng you engine maintenance information.
3
Starting & Stopping
Choke operation/engine warm-up
This engine is a low emissionsengine whichoperates differently
from previously built engines. It is designed for maximum
performance and life if operated with the choke fully open (in
RUN) and throttle fully open (in FAST), To open the choke fully
requires an engine warm-up period of several seconds to
several minutes, depending on the temperature.
After starting engine, first open the choke (toward RUN) until
the engine just begins to run smoothly.Then open the choke in
small steps, allowing the engine to accept small changes in
speed and load, until the choke is fully open (in RUN).
During engine warm-up, the equipment can be operated.
To obtain best starting results
Start engine
other
rotating
machinery,
//_
Always
keep hands
and feet clear of mower blade or
Rewind starter
_
resistance
rasp rope ishandle
felt. Then
as illustrated
pull cord rapidly
and pulltoslowly
overcome
until
compression.
prevent kickback
and start engine.
_IP
Repeat if necessary with
choke off and throttle
control in FAST position.
O
Operate engine in FAST
position.
Store and fuel lawn mower in level position.
Start lawn mower on hard surface or over previously cut grass.
Rewind starter
Electric starter, if equipped
Turn key to START or press button. Repeat if necessary with
throttle control in FAST position. Operate engine in FAST
position.
flammable.
enginestarting
damage
or fire
may fluid
occur.
Do not use aSevere
pressurized
fluid.
Starting
is
_
deck.
Periodically
Removeremove
spark plug
grass
wire build-up
before removing
under mower
grass.
When tipping lawn mower to remove grass, keep
spark plug side of engine up.
Note: If equiprnentmanufacturer has supplied battery, charge it
before trying to stad engine, as equipment manufacturer recommends. Use short starting cycles (15 secs. per rain.) to prolong
starter life. Extended cranking can damage starter motor.
A warm engine requires less choking than a cold engine.
Starting in cold weather
Use the correct oil for the starting temperature expected.
_q,v
De-clutch all possible external loads.
Set speed control at part throttle position.
_
v
START
A warm battery has more starting capacity than a cold battery.
Typical electric starter
Do not use gasoline left over from summer. Use fresh winter
grade gasolinewhich has higher volatilityto improve starting.
Stop engine
Do not move choke control to CHOKE position to stop engine.
Backfire or engine damage may occur.
Move throttle control to SLOW position, then to STOP or turn
key to OFF, depending on how equipped.
Before starting engine
Move choke control to
CHOKE or START position.
Always remove key from switch, if equipped, when equipment
is not in use or left unattended.
Note: Choke must fully
close. If engine does not
start, see control adjustments on page 5.
i
FAST
Typical choke controls
SLOW
If equipment has separate choke and throttle
controls, move throttle
control to FAST position.
FAST
_
START
i
Typical stop controls
Open
fuel
shut-off
valve, if equipped.
close fUel
When
engine
shut-offvalve
is transported,
(if engine is equipped) to prevent
fuel leakage.
I/4 TURN
Typical throttle
Fuel shut-off
Fuel shut-off
In the USA and Canada, a 24 hour hot line, 1-800-233-3723, has a menu of pre-recorded messages offering you engine maintenance information.
4
Adjustments
Control adjustments
Carburetor adjustments
The manufacturer ol the equipment on which this
engine is installed specifies top speed at which the
engine will be operated. DO NOT EXCEED this speed.
w°
k
To
prevent
accidental
starting,
remove spark plug wire from spark ]
plug and disconnect battery at nega- J
live terminal, if equipped, when
adjusting controls.
_
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"rl I_"_
£I
° I
Remote choke control:
Move choke control to CHOKE or START position. Choke
valve should be closed. To assure choke valve is closed, loosen casing clamp screw and pull casing, wire and choke lever
in direction of arrow to end of travel. With choke control in
CHOKE or START position, tighten casing clamp screw.
im
Differences in fuel, temperature, altitude or load may require
minor carburetor adjustment. Air cleaner and air cleaner cover
must be assembled to carburetor before starting engine.
The carburetor on this engine is low emission. It is equipped
with an idle mixture valve with a limiter (see inset), which allows
some adjustment, and an idle speed adjustment screw.
Adjustments
Start engine and warm up approximately 5 minutes before
adjusting. With engine running, place throttle control in SLOW
position. Rotate carburetor throttle lever against the idle
speed screw and hold it. Turn idle speed screw to obtain 1750
rpm.
Rotate idle mixture valve full travel clockwise and then counterclockwise. Finally, position idle mixture valve in middle of travel. Check idle speed and re-adjust to 1750 rpm, if necessary.
Move throttle control to FAST position. Engine should
accelerate smoothly. If it does not, adjust idle mixture valve
counterclockwise 1/8 turn.
CARBURETOR
THROTTLE
LEVER
IDLE MIXTURE
VALVE
WITH LIMITER
Choke control adjustment
To adjust throttle control:
With throttle control in FAST position, hole in governor control
lever (located just behind governor control plate) must align
with hole in governor control plate, as illustrated below. If it
does not, loosen casing clamp screw and then move governor
control rack until it does. Tighten casing clamp screw.
IDLE SPEED
SCREW
@
Check stop switch
Move throttle control to STOP position, if equipped. Governor
control lever must make good contact with stop switch.
Check operation of controls. Readjust if necessary.
HOLE
FAST
IN
GOVERNOR
CONTROL
PLATE
STOP
SWITCH
Carburetor adjustments
GOVERNOR
CONTROL
LEVER
SLeW
GOVERNOR
CONTROL
RACK
CASING
CLAMP
SCREW
Throttle control adjustment
In the USA and Canada, a 24 hour hot line,1-800-233-3723,has a menu of pre-recorded
messages offeringyou enginemaintenanceinformation.
Maintenance
See Maintenance Schedule, page 8. Follow the houdy or calendar intervals, _L_ver
Note that more frequent service is required when operating in adverse conditions.
occur first.
Air cleaner (See page 9 for part numbers.)
Oil foam® air cleaner
To prevent
accidental
starting,
remove spark plug wire from spark
plug and disconnect battery at
negative terminal, if equipped, when
servicing engine or equipment.
_,
1. Lift latch on narrow end of air cleaner cover. Remove cover.
__
_.._
2.
Remove element. Wash in kerosene or liquiddetergent and
water. Squeeze dry in clean cloth. Sat_am
in engine
oil. Squeeze in clean absorbent cloth to remove excess oil.
3. Place element into
air cleaner body.
Make sure element
lip extends over
edges of body to
form
protective
seal. Insert tabs into
slots. Press down
on cover until latch
snaps into place.
Oil
Check oil level regularly.
Be sure correct oil level is maintained. Check every 5 hours or
daily, before starting engine. See check oil level on page 3.
O,LFOA_
ELEMENT
TABS AND
SLOTS
Oil-Foam® air cleaner
Change oil (Follow Maintenance Schedule.)
Dual element air cleaner
Change oil after first 5 hours of operation. Change oil while
engine is warm.
Note: Depending on engine Type Number, this engine may
not be equipped with a pre-cleaner.
1. Remove cover knob and cover.
Remove drain plug and drain oil. Replace and tighten drain
plug. Remove dipstick and refill with new oil of recommended
grade (see chart, page 3). Start and run engine at idle for
30 seconds. Stop engine. Wait 30 seconds and re-check oil
level. If required, add oilto bring level to FULL mark on dipstick.
2. Remove cartridge knob. Carefully lift pre-cleaner and
cartridge from base over stud.
3. Clean base _
to prevent debris from entering
carburetor.
To service pre-cleaner, wash in liquid detergent and water.
Squeeze dry in a clean cloth. Saturate in engine oil. Squeeze
in clean, absorbent cloth to remove all EXCESS oil. Replace if
very dirty or damaged.
To service cartridge, clean by tapping gently on a flat surface.
Do not oil cartridge. Replace if very dirty or damaged.
Note: Do not use petroleum solvents, e.g., kerosene, which will
cause the cartridge to detedorate. Do not use _
to
clean cartridge. Pressurized air can damage the cartridge.
4. Reassemble pre-cleaner on cartridge and place assembly
over stud on base. 33ghten cartridge knob securely.
5. Replace cover and tighten cover knob securely.
711
Typical
drain
plugs
OIL DRAIN
PLUG
TO REMOVE
Oil drain
Oil fill
COVER
KNOB
COVER
KNOB
CARTRIDGE
Replace in-line fuel filter.
See
any Authodzed
Bdggs & Stratton Dealer
for correct replacement.
NEIGH3"
(SEE PAGE 8
FOR P/N'S)
CARTRIDGE &
PRE-CLEANER
FILTIER
,/_
Drain fuel tank or
close fuel shut-off
valve before replacing fuel filter.
STUD
PART NO 394358
(WITH FUEL PUMP)
P/N 298(_0 or 5018
(WITHOUT FUEL PUMP)
BASE
In-line fuel filter
Dual element air cleaner
In the USA and Canada, a 24 hour hot line, 1-800-233-3723, has a menu of prerecorded messages offeringyou engine maintenance information.
6
Maintenance
See Maintenance Schedule, page 8. Follow the hourly or calendar intervals, whichever occur first.
Note that more frequent service is required when operating in adverse conditions.
Grass, chaff or debris may clog the air cooling system, especially after prolonged operation cutting tall, dry grass. Remove
blower housing and clean area shown to prevent overheating
and engine damage. Clean more often if necessary.
Keep engine and paris clean.
Do not clean with a forceful spray of water because water
could contaminate fuel system.
With a
or cloth
remove g
debris from
or rotating screen dail'
(mere often if
to
prevent
damage
caused
by
overheating.
Finger guard
CLEAN AREA OF
ALL DIRT AND DEBRIS
Rotating screen
To
assure
smooth
operation, keep governor linkage, springs
and controls free of
debris.
Air cooling system
Replace spark plug. Do
not blast clean. Clean b_
scraping or wire brushinc
and
washing
with
a
commercial solvent.
Linkage, springs & controls
Use only Briggs & Stratton Spark Tester, Part No.
19368, to check for spark.
If engine muffler is equipped with spark arrester screen,
remove for cleaning and inspection. Replace if damaged or
plugged. See an Authorized Briggs & Stratton Service Dealer
for correct replacement.
.030" (0 76 enm)
PART
NO
491055
Spark plug
it,,
Note: in some areas, local law requires usingresistor spark plug
to suppress ignition signals. If this engine was originally equipped
with resistor spark plug, use same type for replacement.
Daily or more often,
before running engine, clean muffler
area to remove all
grass and combustible debris.
Remove combustion deposits.
Remove cylinder head every 100-300 hours of operation.
Scrape and wire brush combustion deposits from cylinder,
cylinder head, top of piston and around valves. Use a soft
brush to remove deposits. Reassemble gasket and cylinder
head. Turn screws down finger tight. Torque cylinder head
screws in a staggered sequence to 165 in,-Ibs. (19 Nm).
Muffler and spark arrester
See any Authorized Briggs & Stratton ,r Fill in both sides, clip and return to:
Service Dealer. Insist on Genuine /
Briggs & Stratton Corporation
Briggs & Stratton p_!
N-on-original P.O. Box 1144
parts may not perform as well and I Milwaukee, WI 53201-1144 U.S.A.
may void your warranty.
_1
To obtain a complete Parts List ofl Name
Genuine Briggs & Stratton Parts for l
your engine, fill in both sides of this I Address
order form carefully. We cannot fill l
your order without the correctl City
Engine Model/Type/Code. (Please l
allow 3 to 4 weeks for delivery.)
! Your Engine
I Model
I
State
Type
.Zip
County
Code
IIIIIIIJllllllllllllllll
L
In the USA and Canada, a 24 hour hot line, 1-800-233-3723, has a menu of pre-recorded messages olfedng you engine maintenance information.
7
Maintenance
Schedule
27 .1
Follow the hourly or calendar intervals, whichever Occur first.
More frequent service is required when operating in adverse conditions noted below•
Maintenance
Operation
Every 5 Hours
or Daily
25 Hours or
Every Season
100 Hours or
Every Season
50 Hours or
Every Season
100-300
Hours
Check oil level
Change oil •
Note 1
i¸
Service air cleaner oil foam®
element or optional pre-cleaner
Service air cleaner cadridge,
if not equipped with pre-cleaner
Service air cleaner cartridge,
if equipped with pre-cleaner
Inspect spark arrester,
if equipped
j,
Note 2
i
Note 2
Note 2
,tilt
_
FJ
, !i,_
I
_
.L
,
Clean cooling system
Note 2
J.
Replace or clean spark plug
Replace in-line fuel filter,
if equipped
Clean combustion chamber
deposits
Note 1:
Note 2:
C hange oil after first 5 hours, then after every 50 hours or every season,
Change oil every 25 hours when operating under heavy load or in high temperatures.
Clean more often under dusty conditions or when airborne debris is present.
Replace air cleaner parts, if very dirty.
Briggs & Stratton Part Numbers of some
Genuine Briggs & Stratton Parts:
Part
Bdggs & Str_,tton Part No.
Resistor spark plug ...........................
802592
Standard spark plug ..........................
492167
Spark plug wrench .....................
89838 or 5023
Spark tester ...................................
19368
Oil .................................
100005 or 100028
Fuel filter (with fuel pump) .....................
394358
Fuel filter (without fuel pump) ...........
298090 or 5018
Gas additive ....................................
5041
, Bdggs & Stratton Part Numbers of some
Genuine Bdggs & Stratton Parts:
Briogs & Stratton Part No.
Air cleaner oil foam® (Model 194700, 195700) ... 272405
Air cleaner cartridge (Height = 2-1/2 in) .........
493910
Air cleaner pre-cleaner (Height = 2-1/2 in.) .......
272477
Air cleaner cartridge (Height = 3 in.) ............
496894
Air cleaner pre-cleaner (Height = 3 in.) ..........
272403
Air cleaner cartridge and ere-cleaner (Height = 3 in.) ... 5053
Payment Method:
Fill in both sides of this order form carefullYl
:-1
[]
Please charge my
CREDIT
SIGNATURE
t..-
(REQUIRED
D MasterCard
FOR CREDIT
CARD ORDERS
$2.00
Shipping & Handling
**Add State Sales Tax
Total
$1.50
__
__
O VISA
O_
&
(u.s. Dollars,please)
"_1_1"®
Stratton
Genuine Briggs
Parts
" s &
have the Br)gg
Stratton Iogot
_--_"
CARD NUMBER
Parts List
__
i_
J'_"_
_
I[ _'s_s_Tr°"]
-
[] Check or money order enclosed payable to
Sriggs & Stratton Corporation in the amount of $
EXPIfaATION
DATE
Add soles fox If you live in ony of the following stoles: I
"'AL 5% C] 6%, FL 6.5%, GA 4%, KY 6%, MI 6%, MN 6%,I Look for
MO4.225%,NY8.5%,OH5%,'1N6%, "rx 6.25%,WA 6.5%,Wl 5%3 sta mped
Bnggs & Stratton logo
on part an d/o r package
In the USA and Canada, a 24 hour hot line, 1-800-233-3723, has a menu of pre-recorded messages offeringyou engine maintenance information.
8
Service, Storage & Specifications
For service
Storage instructions
Engines stored over 30 days need to be protected or drained
of fuel to prevent gum from forming in fuel system or on
essential carburetor parts.
See an Authorized Briggs & Stratton Service Dealer. Each
one carries a stock of Genuine Briggs & Stratton Parts and is
equipped with special service tools. Trained mechanics
assure expert repair service on all Briggs & Stratton engines.
Only dealers advertising as "Authorized Briggs & Stratton"
are required to meet Briggs & Stratton standards.
"
Briggs & Stratton Gasoline Additive, Part No.
5041, available from an Authorized Briggs &
Stratton Service Dealer. Mix Additive with
in fuel protection,
tank or storage
container.use
Run
1. fuel
For engine
we recommend
of
engine for a short time to circulate Additive
through carburetor. Engine and fuel can be
P/N 5041
stored up to 24 months.
You may locate your nearest Authorized Briggs &
Stratton Service Dealer in the "Yellow Pages TM"
directory under "Engines, Gasoline" or "Gasoline
Engines," or "Lawn Mowers" or similar category.
There are over 30,000 Authorized Service
Dealers worldwide available to serve you.
Your Service Dealer has single-use
pouches of Gasoline Additive available.
Note: Walking fingers logo and "Yellow Pages" are registered
trademarks in various judsdi_ons.
The illustrated shop manual shown here
includes
"Theories
of Operation,"
common specifications
and detailed
information covering adjustment, tune-up
and repair of Briggs & Stratton single
cylinder, L-head, 4 cycle engines. It is
available from an Authorized Briggs &
Stratton Service Dealer or you can order
it from the factory. Write:
Briggs & Stratton Corporation
Attn: Service Division
P. O. Box 1144
Milwaukee, Wl 53201
Note: If engine is operating on oxygenated or reformulated
gasoline (gasoline blended with an alcohol or an ether),
remove all fuel from tank and run engine until it stops from
lack of fuel. If engine is stored with gasoline in fuel tank, we
recommend the use of Gasoline additive, Part No. 5041.
Service
R=_,I.i.s___,,j_
2. While engine is still warm, drain oil from crankcase
(see page 6). Refill with fresh oil of recommended grade
(see chart page 3).
3.
Remove spark plug and pour about 1 oz (30 ml) of engine
oil into cylinder. Replace spark plug and crank slowly to
distribute oil.
4.
Clean dirt and chafffrom cylinder, cylinder head fins, blower
housing, rotating screen and muffler area (see page 7).
5. Store in a clean and dry area, but NOT near a stove,
furnace or water heater which uses a pilot light or any
device that can create a spark.
Pad No. 270962
General information
Tune-up specifications
This is a single cylinder, L-head, air-cooled engine.
On mobile equipment, this engine will operate satisfactorilyat
any angle at which operator and equipment can function safely.
Armature air gap is .010-.014 in. (.25-.36 mm)
Spark plug gap is .030 in. (.76 ram)
Valve clearance is:
Model Series 194700, 195700, 196700
Model Series 194700, 195700, 196700, 197700
Bore .................................
3 in. (76.20 mm)
Stroke ...........................
2-3/4 in. (69.85 mm)
Displacement ...................
Torque (Max.) ..................
intake*. ......................
Exhaust* .....................
19.44 cu. in. (318.5 cc)
12.7 ft. Ibs. @ 2500 rpm
005-.007 in. (.13-. 18 mm)
007-.009 in. (.18-.23 mm)
Model Series 28B700, 28D700, 28M700, 28R700, 28"1-700,
283700, 284700, 286700, 288700, 289700
Intake*. ......................
005-.007 in. (. 13-. 18 mm)
Model Series 28B700, 28D700, 28M700, 28R700, 28"1"700,
28V700, 283700, 284700, 286700, 288700, 289700
Bore ............................
3-7/16 in. (87.31 mm)
Stroke ..........................
3-1/16 in. (77.78 mm)
Displacement ...................
28.42 cu. in. (465.7 cc)
Torque (Max.) ..................
22.9 ft. Ibs. @ 2700 rpm
Exhaust* . ....................
*
009-.011 in. (.23-.28 ram)
with valve springs installed and piston 1/4 in. (6mm) past
top dead center.
Note: For practical operation, the horsepower loading should
not exceed 85% of rated horsepower. Engine power will
decrease 3-1/2% for each 1,000 feet (300 meters) above sea
level and 1% for each 10 ° F (5.6 ° C) above 77 ° F (25 ° C).
In the USA and Canada, a 24 hour hot line, 1-800-233-3723, has a menu of pre-recordedmessages offenngyou engine maintenance information.
9
Briggs & Stratton Corporation (B&S), the California Air Resources Board (CARB)
273681
and the United States Environmental Protection Agency (U.S. EPA)
Emission Control System Warranty Statement (Owner's Defect Warranty Rights and Obligations)
In the interest of the environment, B&S engines that meet strict emisTO CERTIFIED ENGINES PURCHASED IN CALIFORNIA IN 1995
sion requirementsarelabeled,"Thisengineconformsto
1995- 1998
AND THEREAFTER, WHICH ARE USED IN CALIFORNIA, AND
California emission regulations for ULGE engines and U.S. EPA
TO CERTIFIED MODEL YEAR 1997 AND LATER ENGINES
Phase I regulations for small non-road engines."
WHICH ARE PURCHASED AND USED ELSEWHERE IN THE
EMISSION CONTROL WARRANTY COVERAGE IS APPLICABLE
UNITED STATES.
California and United States Emission Control Defects Warranty Statement
CARB, U.S. EPA and B&S are pleased to explain the Emission
there has been no abuse, neglect or improper maintenance of your
Control System Warranty on your 1996 and later utility or lawn and
ULGE engine.
garden equipment (ULGE) engine. In California, new ULGE engines
Your emission control system includes parts such as the carburetor,
produced on or after August 1, 1995 must be designed, built and
air cleaner, ignition system, muffler and catalytic converter. Also
equipped to meet the State's stringent anti-smog standards. Elseincluded may be connectors and other emission related assemblies.
where in the United States, new non-road, spark-ignition engines
Where a warrantable condition exists, B&S will repair your ULGE
certified for model year 1997 and later, must meet similar standards
engine at no cost to you including diagnosis, parts and labor.
set forth by the U.S. EPA. B&S must warrant the emission control
system on your engine for the periods of time listed below, provided
Briggs & Stratton Emission Control Defects Warranty Coverage
ULGE engines are warranted relative to emission control parts
below, lfanycoveredpartonyourengineisdefective,
thepartwillbe
defects for a period of two years, subject to provisions set forth
repaired or replaced by B&S.
Owner's Warranty Responsibilities
As the ULGE engine owner, you are responsible for the performance
You are responsible for presenting your ULGE engine to an Authoof the required maintenance listed in your Operator/Owner Manual.
rized B&S Service Dealer as soon as a problem exists. The undisB&S recommends that you retain all your receipts covering mainteputed warranty repairs should be completed in a reasonable amount
nance on your ULGE engine, but B&S cannot deny warranty solely
of time, not to exceed 30 days.
for the lack of receipts or for your failure to ensure the performance of
If you have any questions regarding your warranty rights and
all scheduled maintenance.
responsibilities, you should contact a B&S Service Representative
at 1-414-259-5262.
As the ULGE engine owner, you should however be aware that B&S
may deny you warranty coverage if your ULGE engine or a part has
The emission warranty is a defects warranty. Defects are judged on
failed due to abuse, neglect, improper maintenance or unapproved
normal engine performance. The warranty is not related to an in-use
modifications.
emission test.
Briggs & Stratton Emission Control Defects Warranty Provisions
The following are specific provisions relative to your Emission Control Defects Warranty Coverage. It is in addition to the B&S engine warranty
for non-regulated engines found in the Operator/Owner Manual.
1. Warranted Parts
3. No Charge
Coverage under this warranty extends only to the parts listed
Repair or replacement of any Warranted Part will be performed
below (the emission control systems parts) to the extent these
at no charge to the owner, including diagnostic labor which leads
parts were present on the engine purchased.
to the determination that a Warranted Part is defective, if the
diagnostic work is performed at an Authorized B&S Service
a_ Fuel Metering System
Dealer. For emissions warranty service contact your nearest
•
Cold start enrichment system (soft choke)
Authorized B&S Service Dealer as listed in the "Yellow Pages"
•
Carburetor and internal parts
under "Engines,
Gasoline,"
"Gasoline
Engines,"
"Lawn
Mowers," or similar category.
•
Fuel Pump
4. Claims and Coverage Exclusions
b. Air Induction System
Warranty claims shall be filed in accordance with the provisions
•
Air cleaner
of the B&S Engine Warranty Policy. Warranty coverage shall be
•
Intake manifold
excluded for failures of Warranted Parts which are not original
c. Ignition System
B&S parts or because of abuse, neglect or improper maintenance as set forth in the B&S Engine Warranty Policy. B&S is not
•
Spark plug(s)
liable to cover failures of Warranted Parts caused by the use of
•
Magneto ignition system
add-on, non-original, or modified pads.
d. Catalyst System
5. Maintenance
•
•
e.
2.
Catalytic converter
Exhaust manifold
Air injection system or pulse valve
Miscellaneous Items Used in Above Systems
•
Vacuum, temperature, position, time sensitive valves
and switches
•
Connectors and assemblies
Length of Coverage
B&S warrants to the initialowner and each subsequent purchaser
that the Warranted Parts shall be free from defects in materials
and workmanship which caused the failure of the Warranted
Parts for a period of two years from the date the engine is delivered to a retail purchaser.
6.
Any Warranted Part which is not scheduled for replacement as
required maintenance or which is scheduled only for regular
inspection to the effect of "repair or replace as necessary" shall
be warranted as to defects for the warranty period. Any
Warranted Part which is scheduled for replacement as required
maintenance shallbe warranted as to defects only for the period
of time up to the first scheduled replacement for that part. Any
replacement part that isequivalent in performance and durability
may be used in the performance of any maintenance or repairs.
The owner is responsible for the performance of all required
maintenance, as defined in the B&S Operator/Owner Manual.
Consequential Coverage
Coverage hereunder shall extend to the failure of any engine
components caused by the failure of any Warranted Part still
under warranty.
In the USA and Canada, a 24 hour hot line, 1-8(X)-233-3723, has a menu of pre-recorded messages offering you engine maintenance information.
lo
About your engine warranty: (see back cover for statement of LIMITED WARRANTY),
Briggs & Stratton welcomes warranty repair and apologizes
to you for being inconvenienced. Any Authorized Service
Dealer may perform warranty repairs. Most warranty repairs
are handled routinely, but sometimes requests for warranty
service may not be appropriate. For example, warranty would
not apply if engine damage occurred because of misuse, lack
of routine maintenance, shipping, handling, warehousing or
improper installation. Similarly, warranty is void if the serial
number of the engine has been removed or the engine has
been altered or modified.
4.
5.
Repair or adjustment of associated parts or assemblies
such as clutches, transmissions, remote controls, etc.,
which are not manufactured by Briggs & Stratton.
6. Damage or wear to parts caused by dirt, which entered
the engine because of improper air cleaner maintenance,
re-assembly, or use of a non-original air cleaner element
or cartridge. (At recommended intervals, clean and re-oil
the Oil-Foam® element or the foam pre-cleaner, and
replace the cartridge.) Read "Owner's Manual."
If a customer differs with the decision of the Service Dealer, an
investigation will be made to determine whether the warranty
applies. Ask the Service Dealer to submit all supporting facts to
his Distributor or the Factory for review. If the Distributoror the
Factory decides that the claim is justified, the customer will be
fully reimbursed for those items that are defective. To avoid
misunderstanding which might occur between the customer
and the Dealer, listed below are some of the causes of engine
failure that the warranty does not cover.
7.
Improper maintenance:
This warranty covers engine related defective
and/or workmanship on_ and not replacement
of the equipment to which the engine may be
Nor does the warranty extend to repairs
because of:
Engine or equipment parts broken by excessive vibration
caused by a loose engine mounting, loose cutter blades,
unbalanced blades or loose or unbalanced impellers,
improper attachment of equipment to engine crankshaft,
overspeeding or other abuse in operation.
9. A bent or broken crankshaft, caused by striking a solid
object with the cutter blade of a rotary lawn mower, or
excessive v-belt tightness.
10. Routine tune-up or adjustment of the engine.
11. Engine or engine component failure, i.e., combustion
chamber, valves, valve seats, valve guides, or burned
starter motor windings, caused by the use of alternate
fuels such as, liquified petroleum, natural gas, altered
gasolines, etc.
material
or refund
mounted.
required
ARE NOT
2. Equipment controls or installations that prevent starting,
cause unsatisfactory engine performance, or shorten
engine life. (Contact equipment manufacturer.)
3.
Warranty is available only through service dealers which
have been authorized by Brigga & Stratton Corporation.
Your nearest Authorized Service Dealer is listed in the
"Yellow Pages T`''' of your telephone directory under
"Engines,
Gasoline" or "Gasoline
Engines," "Lawn
Mowers," or similar category.
Leaking carburetors, clogged fuel pipes, sticking valves,
or other damage, caused by using contaminated or stale
fuel. (Use clean, fresh, lead-free gasoline and Briggs &
Stratton gasoline stabilizer, Part No. 5041.)
Briggs & Straiten
5,548,955
5,546,901
5,503,125
5,497,679
5,406,994
5,320,795
5,271,363
In the USA and Canada,
Parts damaged by overspeeding, or overheating caused
by grass, debris, or dirt, which plugs or clogs the cooling
fins, or flywheel area, or damage caused by operating the
engine in a confined area without sufficient ventilation.
(Clean fins on the cylinder, cylinder head and flywheel at
recommended intervals.) Read "Owner's Manual."
8.
The life of an engine depends upon the conditions under
which it operates, and the care it receives. Some applications,
such as tillers, pumps and rotary mowers, are very often used
in dusty or dirty conditions, which can cause what appears to
be premature wear. Such wear, when caused by dirt, dust,
spark plug cleaning grit, or other abrasive material that has
entered the engine because of improper maintenance, is not
covered by warranty.
1. PROBLEMS CAUSED BY PARTS THAT
ORIGINAL BRIGGS & STRATTON PARTS.
Parts which are scored or broken because an engine was
operated with insufficient or contaminated lubricating oil,
or an incorrect grade of lubricating oil (check oil level daily
or after every 8 hours of operation. Refill when necessary
and change at recommended intervals.) Read "Owner's
Manual."
Engines Are Made Under One Or More Of The Following Patents: Design D-247,177
5,269,713
5,191,864
5,058,544
4,977,879
4,694,792
5,265,700
5,188,069
5,040,644
4,971,219
4,633,556
5,243,978
5,185,142
5,040,S03
4,895,119
4,630,498
5,235,943
5,138,996
5,009,208
4,875,448
4,522,080
5,234,038
5,105,331
4,996,956
4,819,593
4,520,288
5,197,425
5.08S,890
4,995,357
4,719,682
4,453,507
5,197,422
5,070,829
a 24 hour hot line, 1.,800-233-3723,
has a menu of pre-recorded
11
messages
(Other Patents Pending)
4,430,984
DES.
4,355,253
DES
4,270,509
DES.
4,233,534
DES.
DES. 375,963
DES.
DES. 372,871
DES.
361,771
356,951
309,458
309,457
308,872
308,871
offering you engine maintenance
irffom'k_fJon,
BRIGGS & STRATrON ENGINE OWNER WARRANTY POLICY
effective July 1, 1997
Replaces all undated Warranties and all Warranties
dated before July 1, 1997
LIMITED WARRANTY
"Briggs & Stratton Corporation will repair or replace, free of charge, any part, or parts of the engine that are defective in
material or workmanship or both. Transportation charges on parts submitted for repair or replacement under this Warranty
must be borne by purchaser. This warranty is effective for the time periods and subject to the conditions provided for in this
policy.For warranty service contact your nearest Authorized Service Dealer as listed in the 'Yellow PagesTM'under 'Engines,
Gasoline,' 'Gasoline Engines,' 'Lawn Mowers' or similar category. THERE IS NO OTHER EXPRESS WARRANTY.
IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE LIMITED TO ONE YEAR FROM PURCHASE, OR TO THE EXTENT PERMITI'ED BY LAW ANY AND ALL IMPLIED
WARRANTIES ARE EXCLUDED. LIABILITY FOR CONSEQUENTIAL DAMAGES UNDER ANY AN D ALL WARRANTIES
ARE EXCLUDED TO THE EXTENT EXCLUSION IS PERMITTED BY LAW. Some states do not allow limitations on how
long an implied warranty lasts, and some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights and you
may also have other rights which vary from state to state."
Briggs & Stratton Corporation
F. P. Stratton, Jr.
Chairman and Chief Executive Officer
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
WARRANTY
PERIOD
WITHIN U.S.A. AND CANADA
CONSUMER
USE*
ENGINES
All Vanguard TM engines.
COMMERCIAL
USE*
OUTSIDE U.S.A. AND CANADA
CONSUMER
USE*
2 year - engine / Lifetime** - Magnetron®
All Diamond Plus®, Industrial Plus TM,
engines and sleeve bore Intek series.
I/C®
I COMMERCIAL
USE*
ignition
2 year
1 year
Quantum® and Diamond Power®.
2 year
90 days
2 year t
90 days
All standard engines and Kool Bore TM Intek series
installed on lawn mowers, riders, edgers,
chippers, shredders, tillers, fun carts, and all
Sno/Gard engines.
2 year
90 days
1 year
90 days
All other standard engines and Classic
1 year
90 days
! year
90 days
TM
series.
2 year
1 year
For purposes of this warranty policy, "consumer use" means personal residential household use by the original retail consumer.
"Commercial use" means all other uses, including use for commercial, income producing or rental purposes. Once an engine
has experienced commercial use, it shall thereafter be considered as a commercial use engine for purposes of this warranty.
Engines used in competitive racing or on commercial or rental tracks are not warrantied.
** Lifetime limited warranty of the Magnetron® ignitioncovers parts and labor for the first five (5) years from the date of pumhase;
thereafter only parts. "Lifetime" means lifetime of the engine in the hands of the original purchaser.
1
One (1) year in Australia, New Zealand, Middle East and Africa.
NO WARRANTY REGISTRATION
YOU MUST SAVE THE PURCHASE
CARD IS NECESSARY TO OBTAIN WARRANTY ON BRIGGS & STRATTON ENGINES.
RECEIPT. A PROOF OF PURCHASE DATE WILL BE REQUIRED TO OBTAIN WARRANTY.
In the USA and Canada, a 24 hour hot line, 1-800-233-3723, has a menu of pre-recorded messages offering you engine maintenance information.
12